相关实验视频

Updated: Jul 13, 2025

A Robotic Platform for High-throughput Protoplast Isolation and Transformation

A Robotic Platform for High-throughput Protoplast Isolation and Transformation

Published on: September 27, 2016

甲酸脱酶增强了烟草的耐受性

Yonghong Xie¹, Yunmin Wei, Rongrong Han

¹College of Animal Science and Technology, Southwest University, Chongqing 400715, People's Republic of China.yuyongxiong8@126.com.

Journal of genetics

|October 18, 2023

概括

甲酸脱酶 (FDH) 通过增强抗氧化酶活性和酸盐分泌来增强植物对 (Al) 压力的耐受性. 这项研究揭示了在有毒Al条件下改善作物生长的新机制.

科学领域:

植物生物学植物生物学
生物化学生物化学
遗传学遗传学是一个

背景情况:

甲酸脱酶 (FDH) 是植物中普遍存在的压力蛋白.
(Al) 压力显著影响植物生长和发育.
了解植物对毒性的反应对农业至关重要.

研究的目的:

调查大豆形式脱酶 (GmFDH) 在赋予对 (Al) 应力耐受性的作用.
阐明GmFDH在植物中调解Al耐受性的机制.

主要方法:

来自坦巴黑大豆的GmFDH基因的生物信息分析.
定量逆转录PCR (qRT-PCR) 用于分析在Al压力下的GmFDH表达.
在烟草中过度表达GmFDH以评估其在Al耐受性中的功能.
在转基因和野生型烟草中测量Al和活性氧物种 (ROS) 积累,酸盐排泄,抗氧化酶活性和酸盐合成酶活性.

主要成果:

GmFDH表达是由Al压力以一种特定于度和时间的方式诱导的.
在烟草中过度表达GmFDH缓解了Al诱导的根生长抑制.
转基因烟草显示了减少Al和ROS积累,增加根酸盐排泄,以及更高的抗氧化酶活性.
在转基因系中,酸盐合成酶活性升高,与酸盐分泌量增加相关.

结论:

通过增加抗氧化酶活性和酸盐分泌,GmFDH增强了植物中的Al耐受性.
这项研究确定了一种独立于已知的Al抗性基因 (NtMATE,NtALS3) 的Al耐受性的新型机制.
研究结果表明,GmFDH是改善受Al影响土壤中的植物Al耐受性和作物生产率的潜在目标.

更多相关视频

Measuring Gene Expression in Bombarded Barley Aleurone Layers with Increased Throughput

Measuring Gene Expression in Bombarded Barley Aleurone Layers with Increased Throughput

Published on: March 30, 2018

A Flexible Low Cost Hydroponic System for Assessing Plant Responses to Small Molecules in Sterile Conditions

A Flexible Low Cost Hydroponic System for Assessing Plant Responses to Small Molecules in Sterile Conditions

Published on: August 25, 2018

相关概念视频

Adaptations that Reduce Water Loss

Adaptations that Reduce Water Loss

Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.

Responses to Salt Stress

Responses to Salt Stress

Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.

Acid Halides to Alcohols: LiAlH4 Reduction

Acid Halides to Alcohols: LiAlH₄ Reduction

Acid halides are reduced to alcohols in the presence of a strong reducing agent like lithium aluminum hydride.
The mechanism proceeds in three steps. First, the nucleophilic hydride ion attacks the carbonyl carbon of the acid halide to form a tetrahedral intermediate. Next, the carbonyl group is re-formed, and the halide ion departs as a leaving group, generating an aldehyde. A second nucleophilic attack by the hydride yields an alkoxide ion, which, upon protonation, gives a primary alcohol as...